ASC 7.62x39 Stainless Steel magazines are engineered with the highest levels of quality for durability and dependability, simply the best in the industry! These magazines are manufactured 100% start to finish in the USA using .020 gauge 410 Stainless Steel Alloy, heat treated for superior strength and lasting endurance. ASC's magazines are chemically treated for corrosion resistance with a proprietary Marlube FDE coating which is a wear-in not wear-off coating that burnishes into the surface providing self-lubricating properties. Once you try this magazine, it will be your number 1 choice!